Cam



April 13 1926. 1,580,178

E; E. TALBOT CAM Filed May 1925 Patented Apr. 13, 1926.

nvaarsrn E. minor, or FALL RIVER, messacnusn'r'rs.

Application filed Ka 10, 1925. Serial No. 80,740.

To all whom it may concern:

Be it known that I, EVARISTE E. TALBOT, a citizen of the United States, residing at Fall River, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Cams, of which the following is a specification, reference being bad therein to the accompanying drawings.

My invention relates to cams, and particularly to means for securely adjusting them in relation to each other,.for the purpose of accurately timing their action, and securely locking them in operative position to a cam-shaft; and while my invention is of great value, as when used in looms making heavy sley goods, as pointed out in a copending application, Serial No. 757,371, f1led Dec. 22, 1924, its use is not confined to looms; its utility is to be found in many diflierent environments. 4

In the drawings illustrating the principle of my invention and the best mode now known to me of embodying the same in 25 operative structure,

Fig. 1 is a front view of my improved cams mounted upon a cam-shaft;

Fig. 2 is a section of same on line 2-2, Fig. 1; V

Fig. 3 shows a cam with adjusting interlocking teeth;

Fig. 4 shows a cam with dovetail members.

Cams'l, 2, 3 and 4, Fig. 1, are slidably and adjustably mounted upon a sleeve 5 having an abutting collar 6 through which passes a binding screw 7 to fix the sleeve to a cam-shaft 8. This collar 6 has dovetailed members 9, 180 degrees apart, with which similar members 10 on ad acent cam, as 1, Figs. 1 and 4, engage. On-the opposite face of cam 1 is a series of lock teeth 11 which are designed to engage similar teeth on the face of, the next adjacent cam 2, and this latter cam has on its opposite side dovetailed members 10, Fig. 4, 180 degrees apart, similar to those already described. Cams 3 and 4 are like cams 1 and 2, but are each 180 de- 'rees in advance of the latter cams. A collar 12 has dovetailed members 13 to en age those of the cam 4, and is held in Ice ing engagement with said cam, by means of a binding nut 14 engaging threads upon the end portions of the sleeve 5,

From an inspection of Fig. 1, it is obvious that cams 2 and 3 bear afix'ed relation to each other by reason of the dovetailed members 9 and 10, While cams 1 and 2, and 3 and 4, may be varied in their relations through the interlocking teeth 11.

And further, while in the drawings the dovetailed members 10 are 180 degrees apart, as required in above-mentioned co-pending application, obviously the angularity these members bear to each other, may be varied to bring about a desired timing of the adjacent cams, as 3 and 4.

In short, by reason of my invention, the cams may be quickly and easily and most accurately adjusted upon thecam-shaft, for the purpose of timing the succeeding operations of the cams, say upon their respective 'cam-treadles of a loom, not shown.

Without limiting myself to the particular embodiment of-my invention illustrated and explained above, and desiring to protect my invention in the broadest manner legally possible,

What I claim is:

1. A cam-shaft, having a sleeve fixable thereto; said sleeve having a shoulder with lock members; a cam mounted on said sleeve having on one side a circular series oflocking teeth, and on the opposite'side a locking member to engage the lock member on said sleeve; a second cam on said sleeve and having like looking teeth and lock member, said locking teeth engaging those of the first-mentioned cam; a ring having a similar locking member engaging the locking member of the second earn; a binding nut engaging threads upon the end portions of the sleeve, to force together all of said locking teeth and members and firmly lockthe cams to the sleeve.

2., A cam shaft having a sleeve fixed thereto; said sleeve having a shoulder with lock members; a cam having on one side two lockin members to on age said members upon sa1d shoulder; a circular series of locking teeth on the opposite side of said cam; a second cam mounted upon said sleeve, and hav-.

ing like locking teeth and locking members;

said teeth of said camsin looking on a fourth cam havin locking members,

g like looking teeth and said teeth engaging said teeth of said third cam; a locking ring on said sleeve with fourth cam; and

like looking members and 5 in engagement with said members on said a binding nut engaging of the sleeve for forcing and holding together all of said mentioned locking members and locking teeth, and holding said cams in operative position upon said sleeve upon said cam-shaft.

In testimony whereof I hereunto aflix my signature.

EVARISTE E. TALBOT. 

